Open AccessCreep of Clayey Soil with Kinematic Shear, Taking into Account Internal Friction, Adhesion and Viscous Resistance
Author(s) -
Z. G. Ter-Martirosyan,
Armen Ter-Martirosyan,
Lyubov Ermoshina
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/661/1/012095
Subject(s) - shear rate , shear (geology) , materials science , kinematics , geotechnical engineering , rheology , creep , direct shear test , simple shear , mechanics , geology , composite material , physics , classical mechanics
The article presents the results of experimental studies of the ultimate shear resistance of clayey soil during kinematic shear ( γ 1 > γ 2 > γ 3 > γ 4 ), which are necessary for a quantitative assessment of the effect of shear rate on the magnitude of the ultimate shear resistance. It is shown that this effect is due to the viscous resistance of water-colloidal bonds between particles. Structural adhesion and Coulomb friction does not depend on the shear rate. A new rheological equation has been obtained, which makes it possible to describe the kinematic shear process at various compressive loads ( σ ) and shear rates ( γ ), with high accuracy, including the dependence of the ultimate shear resistance on the logarithm of the shear rate (In γ ). In this case, the shear resistance in the kinematic shear process grows more slowly than when describing the shear using the Maxwell model.